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Alosies

GitLab MCP Server

by Alosies

create_pipeline

Trigger a new pipeline in a GitLab project by specifying the project ID and a branch or tag, with optional variables for customization.

Instructions

Create a new pipeline

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
refYesBranch or tag name
variablesNoPipeline variables
project_idYesProject ID or path
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, and the description fails to disclose any behavioral traits such as mutability, side effects, permissions, or what happens upon creation. The word 'create' implies mutation but no further context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise but underspecified. It lacks essential details, making it more of a placeholder than a concise useful description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With 3 parameters, no output schema, and no annotations, the description is completely inadequate. It does not explain return values, behavior, or usage context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds no extra meaning beyond the schema, but it does not detract.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states 'Create a new pipeline,' which is a verb+resource, but it's vague and does not distinguish from sibling pipeline tools like cancel_pipeline or delete_pipeline. It borders on tautology.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool vs alternatives. Siblings include many pipeline-related tools (e.g., retry_pipeline, get_pipeline) with no mention of selection criteria.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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